Loads and Loads
Take your pick:-
Some will be dependant upon age, and how many children you did it with.
Physical Development - Using Equipment and Materials (if you used spoons, mixers, pouring measuring etc)
Physical Development - Health and Bodily Awareness (always have a chat about importance of cleaning hands, and washing, and things that are good/no so good for use)
Personal Social and Emotional Development - Behaviour and Self Control (taking turns, waiting, sharing)
Creative Development - Exploring Media and Materials/being creative - (notice and feel different textures when using ingredients, descriptive words as you work, what is happening as you add different ingredients)
Communication Language and Literacy -
Language for Thinking (talking through the process with the children, asking them questions about what is happending, encouraging them to explain why we use or do certain things)
Problem Solving Reasoning and Numeracy - Numbers as Lables and for Counting (counting spoonfulls, looking at numbers on scales, is there more or less of different ingredients, counting papercases, dividing how many cakes each)
I may be wrong, but I love baking for this reason you can bring in so many areas of the EYFS and include all ages, I always go through the whole process from washing hands, turing on the oven, warning ovens are hot, taking turns, adding ingredients...............
anyway I'm sure you can find more or less if need be.